John plant



UNITED sTATEs PATENT oEEIoE.

JOHN PLANT, OF WASHINGTON, DISTRICT OF COLUMBIA.

HINGE FOR BLIN DS, &c.

Specification forming part of Letters Patent No. 5,080, dated April 24, 1847; Reissued May 15, 1847, No. 94.

T o all whom t may concern Be it known that I, JOHN PLANT, of the city of Washington and District of Columbia, have invented a new and useful Improvement in Butt-Hinges for Window'- Blinds and other Outside Shutters, and that the following is a full, clear, and exact description of the principle or character which distinguishes it from all other things before known and of the manner of making, constructing, and using the same, reference being had to t-he accompanying drawings, making part of this specification, in which- Figure 1 is an isomet-rical projection vof the hinge; Fig. 2, an elevation of the side opposite to the one shown in Fig. l.

The same letters indicate like parts in all the figures.

The nature of my improvement consists in affiXing a sliding bolt to the hingeat or near its joint, so constructed as to embrace and sustain both parts of the hinge when open, as sho-wn in the drawing, and thus hold the blind back without bringing any strain upon the pivoting pin by which its liability to break is obviated and aperfect, cheap, and compact hinge is formed.

The construction of my improved hinge is as follows: The two halves of the hinge are made similar to those in common use except the pivoting pin (a), shown in Fig. 2 by dotted lines, which does not-extend up into the movable half (Z9) of the hinge as far as usual; at the top of the joint there is a small projecting piece (c) intended to strengthen the hinge and aord a firm bearing for the bolt, (about to be described). At that point o-n the side opposite to the projection (c) there is a stud standing out from the back of the movable half of the hinge a little below the upper edge thereof as is clearly shown in Fig. l, and if thought necessary a similar one may be placed at the bottom but this latter one is not represented; on the stationary part (e) of the hinge there is a projection (f)l on which a bolt (g) slides up and down, the top part i of this bolt (g) projects forward and when down as shown in Fig. l rests in a notch (Il.) represented in Fig. 2, in the upper edge j of the hinge (e) the endpof this projection farthest from the joint has a notch in it so asto receive and embrace a portion (vl) of the upper edge of the stationary part of the hinge. On the side of the bolt next to the joint a stout hook (la) is formed that hooks over the stud (c5) above named on the movable half (b), and securely holds it open, the projection (g) being at the same time brought down in contact with (c) on the opposite side and the blind fastened open, by simply raising the bolt, which is done by pressing the thumb under the projection (g) the hinge is freed and the blind can be closed. As an additional security a second hook may be added to the bolt (g) as shown by red lines at (Z) in the drawing,`Fig. l, which can be made to embrace a second stud on the movable part as above named; but in most cases one will be found suliicient for all practical purposes by arranging the bolt with the parts of the hinge as abovev described. It is obvious that great strength is attained with more compactness than in any of the other hinges for similar purposes now in use by shutting a portion of the bolt down directly into the joint while it is firmly secured to one side and hooks on to the other makes a perfect fastening.

Having thus fully described my improvementwhat I claim as new and desire to secure by Letters Patent is- The combination of the bolt with the I hinge in the manner described so that a portion of it enters between the two parts of the hinge at the joint so as to brace on one side, while the hook on the bolt firmly secures it on the other side, the whole being constructed substantially in the manner and l for the purpose described.

JOHN PLANT.

Witnesses:

A. P. BRowNE, CH. L. SLEINKMANN,

[FIRST PRINTED 1913.] 

